TIMKEN bearing frequent replacement the cause of the problem and solution - bearing knowledge

TIMKEN bearing frequent replacement failure reason of frequent replacement of TIMKEN bearings exclusions solution 1. Grease or oil failure, decided to give the correct form of models to choose not to ask of oil lubricant 2. Low oil level or lack of grease lubricating oil will be lower than the bottom one at the center of the roller, TIMKEN bearing grease filling about 1/3 to 1/2 in the space. TIMKEN bearing internal clearance is not appropriate such as axis, heat expansion when heated to choose appropriate TIMKEN bearing internal clearance, such as from a standard to C3 and C3 to C4 4. Lubricant is stolen goods, grains of sand, carbon powder and so on foreign body contamination cleanup TIMKEN bearing box, change the new oil seal or improved oil seal, inject fresh lubricant 5. Water, acid, paint or other corrosive substances into the TIMKEN bearing box filling quantity of moistureproof cover or protective dust ring (6). Axion twisted or inner hole is not round, small measurement and turning TIMKEN bearings in the size of holes, the fixed end TIMKEN bearing balls by columns TIMKEN bearing, deep groove ball bearing TIMKEN hole tight or small 7 could lead to a box. Assembly before the TIMKEN bearing TIMKEN TIMKEN bearing box didn't clean is clean bearing box and add fresh lubricant 8. Airflow through the air flow through the TIMKEN bearing oil such as fan because of TIMKEN bearing installation barge board makes the airflow, possible use of grease 9. TIMKEN bearing cross positioning in TIMKEN bearing box and lifted the lid to join between flange gaskets to release the preload on the TIMKEN bearing load 10. A shaft have two positioning TIMKEN bearings, excessive axial expansion causing shortages will either TIMKEN TIMKEN bearing internal clearance of bearing box offshoring end cover, and insert the gasket to adjust the TIMKEN bearing outer ring axial clearance, TIMKEN bearing is able to free the axial movement of 11. Journal is too small or the neck sleeve locking enough spray shaft neck surface and grinding to the specified size or locking sleeve 12 again. Fasten the fixed sleeve too loosen screw and barrel, lock again to enough force, but must make sure the TIMKEN bearing can rotate freely 13. Excessive loss of engine oil from TIMKEN bearing separation box sealed with a thin layer of paint will help to prevent oil spill don't use adjustment gaskets, replace the TIMKEN bearing box 14 when necessary. Machine unbalanced load is too large, or TIMKEN bearing hole is too big to balance machine, or replace accurate aperture TIMKEN bearing box 15. Due to deformation of the shaft hole and TIMKEN bearing box composite uneven distribution of TIMKEN bearings reprocessed axis and TIMKEN bearing box holes in order to obtain the proper shape and cooperate. But often need to replace a new shaft or TIMKEN bearing box 16. TIMKEN bearings in steel TIMKEN bearing support is insufficient, the outer ring are distorted reprocessed TIMKEN bearing box of chamfer to eliminate stress, you may need to add shoulder snap ring 18. Shoulder and TIMKEN bearing seal friction shoulder to eliminate friction 19. TIMKEN bearing seal deformation reprocessed TIMKEN bearing box empty shoulder to avoid TIMKEN bearing sealing cover 20. Axis and inner ring deformation, TIMKEN bearing inner ring uneven expansion reprocessed chamfer to obtain the appropriate support is 21. TIMKEN bearing box and outer deformation, TIMKEN bearing squeezed reprocessed TIMKEN bearing box of chamfering adequate support for 22. Rotary oil seal or dumped dust ring friction static parts inspection of the rotating seal or dust ring of far transfer clearance to avoid friction, and prevent cardiovascular and 23. Oil level is not correct, no lubricant in the TIMKEN bearings eliminate porosity of a blockage in the oil level gauge, the oil level shows 24 correctly. TIMKEN bearing and shaft different heart, or different heart through adjustment gasket axis and axis counterpoint between TIMKEN bearings, or improving accuracy in between shaft and shaft to 25. Constant oil cup installed too high or too low, or installed with TIMKEN bearing to the opposite position by static state oil level is not higher than the bottom of the center of the roller, or install the constant oil cup in consistent with the TIMKEN bearing rotation the accurate position of the 26. Friction between the other moving parts and the stationary parts of the machine to check fitting clearance between 27 movement parts. TIMKEN bearing installation method is not correct, hammer TIMKEN bearing replacement new TIMKEN bearings, standard shaft installation, 28. Shoulder shoulder or box hole or not perpendicular to the TIMKEN bearing lock nut a machined parts in order to obtain good verticality 30. Journal machining dimension to lead to TIMKEN bearing internal clearance is too small shaft and TIMKEN bearing grinding shaft neck get proper cooperate to 31. TIMKEN bearing box comte force causes the TIMKEN bearing outer ring material is too soft in box hole skid expand box hole and add a notice village set, and then processing copper village set to a suitable size